During this healing process, the fibroblasts in the dermis (second layer of skin) produce a substance called collagen.

Collagen acts as the framework, providing support to the epidermis (top layer of skin).

The incorrect amount of collagen in the wrong area will potentially create a scar and unevenness to the skin.

There are two main types of scars, each depends on how much collagen your body makes:

• Raised (Hypertrophic): raised bumps caused by too much collagen and are most common on the shoulders, upper back and chest, and in people with darker skin types
• Depressed (Atrophic): Are the most common type and are caused when not enough collagen is produced.

Atrophic scars are further subdivided into:

• Icepick – narrow v-shaped scars extending deep into the dermis
• Rolling – wide and shallow scars
• Boxcar – similar to icepick scars but the same width from top to bottom